Input text: There is a shiny rock. It is -0.5 feet above the ground.
The first black tree is 5 feet north of the rock. It is -3 feet east of the rock. Its trunk is black.
The second black tree is 1 foot north of the first tree. It is -3 feet west of the rock. Its trunk is black.
The camera light is black. The sun is black. The ambient light is gray.
The ground is unreflective black.
The sky is black.
The river is shiny black. It is -2 feet above the rock. It faces east. It is 400 feet wide. It is 56 feet deep.
The ground is 100 feet tall.
The very huge shiny [stone] skull is 1 feet above the rock.
The dim gray light is 2 feet in front of the skull.